LG KG920 - Page 106

4. TROUBLE SHOOTING
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CHECKING FLOW
Figure 4-56.
START
Is the connection of
FPCB with connector on
PCB(CN300) ok ?
YES
NO
Reassemble FPCB with CN300 connector
NO
Check the soldering of
CN300 ?
NO
YES
YES
Check the soldering of
EMI filter ?
Resoldering CN300
NO
Resoldering EMI filter(FL400~FL404)
Does LCD work
properly ?
Replace LCD module
LCD working well !
YES